diff --git a/src/OnboardingSPA/steps/SiteGen/SiteDetails/index.js b/src/OnboardingSPA/steps/SiteGen/SiteDetails/index.js
index 658b33850..3c0d39add 100644
--- a/src/OnboardingSPA/steps/SiteGen/SiteDetails/index.js
+++ b/src/OnboardingSPA/steps/SiteGen/SiteDetails/index.js
@@ -58,6 +58,8 @@ const SiteGenSiteDetails = () => {
 			currentData.sitegen.siteDetails.mode = 'simple';
 			currentData.sitegen.skipCache = true;
 			currentData.sitegen.sitemapPagesGenerated = false;
+			currentData.sitegen.homepages.active = {};
+			currentData.sitegen.homepages.data = {};
 			setCurrentOnboardingData( currentData );
 		}
 		setIsFooterNavAllowed( isValidInput );